The accord between the country's government and its largest rebel movement ends a half-century of combat.
Stay tuned afterward as Katie Couric and Matt Bai host a panel of experts breaking down tonight’s biggest moments.
A heavily armed, disgruntled lawyer randomly shot at drivers before police shot and killed him, authorities said.
Europa's plumes may make it easier to learn whether life exists in the warm, salty ocean beneath its icy surface.
A former Port Authority official testified that the "time for some traffic problems" email began the events in Fort Lee, N.J.
A showdown is set over the president's veto of a bill that would let families of Sept. 11 victims to sue Saudi Arabia.